Comprehensive Guide to U.S. Airline Luggage Policies

Whether you're flying coast-to-coast or heading overseas, understanding the luggage policies of your chosen airline is crucial to avoid unexpected fees and delays. This guide provides a detailed breakdown of luggage guidelines for every major U.S.-based airline, covering both carry-on and checked baggage rules. 

General FAA Guidelines

All airlines operating within the United States must adhere to Federal Aviation Administration (FAA) standards. These include:

  • Carry-on Allowance: One carry-on bag and one personal item (e.g., purse, briefcase, laptop bag).
  • Common Carry-On Size: 22 x 14 x 9 inches (56 x 36 x 23 cm)
  • Weight Limit: Typically 40 pounds, though not all airlines specify
  • Checked Baggage Limit: 62 linear inches (158 cm), max 50 lbs for economy class
  • TSA Locks Recommended for checked luggage

Note: Always include handles and wheels when measuring luggage.

Airline-by-Airline Luggage Policies (U.S. Carriers)

1. American Airlines (AA)

  • Carry-on: 22 x 14 x 9 in; no domestic weight limit
  • Personal Item: Must fit under seat (e.g., backpack, handbag)
  • Checked Bags: $30 for the first, $40 for the second (domestic)
  • Weight Limit: 50 lbs (economy), 70 lbs (business/first)
  • Oversize Fees: From $100 (for 63–126 linear inches)

2. Delta Air Lines (DL)

  • Carry-on: 22 x 14 x 9 in; no domestic weight limit
  • Personal Item: Small backpack or laptop bag
  • Checked Bags: $30 (first), $40 (second) for domestic routes
  • Weight Limit: 50 lbs (economy), 70 lbs (premium)
  • Special Notes: Bags over 100 lbs not accepted

3. United Airlines (UA)

  • Carry-on: 22 x 14 x 9 in
  • Personal Item: Must fit under seat (17 x 10 x 9 in)
  • Checked Bags: $35 (1st), $45 (2nd) for Basic Economy
  • Weight Limit: 50 lbs (economy), 70 lbs (business/first)
  • Basic Economy: Personal item only unless carry-on is paid for

4. Southwest Airlines (WN)

  • Carry-on: 24 x 16 x 10 in
  • Personal Item: Must fit under seat
  • Checked Bags: Two free checked bags
  • Weight Limit: 50 lbs each
  • Oversize/Overweight Fees: From $75

5. Alaska Airlines (AS)

  • Carry-on: 22 x 14 x 9 in
  • Personal Item: Must fit under seat
  • Checked Bags: $35 (1st), $45 (2nd)
  • Weight Limit: 50 lbs
  • Club 49 Members: First 2 bags free (for AK residents)

6. JetBlue Airways (B6)

  • Carry-on: 22 x 14 x 9 in
  • Personal Item: Free for all fares
  • Checked Bags: $35 (1st), $50 (2nd)
  • Weight Limit: 50 lbs
  • Blue Basic: Does not include carry-on—only personal item allowed

7. Spirit Airlines (NK)

  • Carry-on: 22 x 18 x 10 in (fees apply)
  • Personal Item: Free (18 x 14 x 8 in max)
  • Checked Bags: Varies by route, typically from $42 online
  • Weight Limit: 40 lbs standard (fees apply for 41–100 lbs)
  • Special Notes: Lowest base fares, but nearly all extras cost more

8. Frontier Airlines (F9)

  • Carry-on: 24 x 16 x 10 in (paid)
  • Personal Item: Free if under seat-sized
  • Checked Bags: $39–$55 depending on when and where purchased
  • Weight Limit: 40 lbs (fees apply above this)
  • Extra Tips: Prepay online to save on baggage fees

9. Allegiant Air (G4)

  • Carry-on: 22 x 14 x 9 in (paid)
  • Personal Item: Free
  • Checked Bags: Varies by route and season
  • Weight Limit: 40 lbs
  • Extras: Sports equipment and musical instruments cost more

10. Sun Country Airlines (SY)

  • Carry-on: 24 x 16 x 11 in (included with upgraded fare)
  • Personal Item: Free
  • Checked Bags: From $30 if pre-purchased
  • Weight Limit: 50 lbs
  • Elite Status: One free checked bag

11. Hawaiian Airlines (HA)

  • Carry-on: 22 x 14 x 9 in
  • Personal Item: Free
  • Checked Bags: $30 (1st), $40 (2nd) on inter-island and U.S. mainland flights
  • Weight Limit: 50 lbs (domestic), 70 lbs (international)
  • Special Notes: International checked bag policies differ by route

Additional Guidelines

Medical and Assistive Devices

All U.S. carriers allow essential mobility or medical devices onboard at no charge. This includes wheelchairs, walkers, CPAP machines, and insulin coolers.

Traveling with Children

  • Strollers and car seats can be checked for free
  • Lap infants do not receive a baggage allowance unless a ticketed seat is purchased

TSA Tips

  • Use TSA-approved locks to prevent forced entry during security checks
  • Keep valuables and medications in carry-on luggage
  • Avoid packing undeveloped film in checked bags (can be damaged during screening)

Choosing the Right Luggage

The UUH luggage set is specifically designed to meet the demands of U.S. airline regulations:

  • Carry-on: Conforms to 22 x 14 x 9 inches for compatibility with most carriers
  • Checked bag: Sized to stay within the 62 linear inches rule
  • Expandable space allows flexibility without exceeding limits
  • Lightweight yet durable build resists rough handling
  • Integrated TSA locks make inspections easier and more secure
  • Spinner wheels and ergonomic handles improve maneuverability

Whether you're flying with a budget carrier like Spirit or a full-service airline like Delta, the UUH luggage set keeps you compliant and comfortable.

Final Travel Tips

  • Always check your airline’s website before flying—policies change frequently
  • Measure luggage dimensions including handles and wheels
  • Join loyalty programs or use airline credit cards to get free checked bags
  • Download your airline’s app to check in, manage bags, and receive updates
  • For long trips or checked bags, consider adding a luggage tracker to avoid loss

With a thoughtful approach to packing and a smart investment in gear like the UUH luggage set, you can travel stress-free and avoid costly baggage fees.